Mesophilic co-digestion of palm oil mill effluent and empty fruit bunches

Title
Mesophilic co-digestion of palm oil mill effluent and empty fruit bunches
Author(s)
정진영김상현[김상현]최선미[최선미]주현준[주현준]
Keywords
ANAEROBIC-DIGESTION; BIOGAS PRODUCTION; FOOD WASTE; METHANE; SLUDGE; IMPROVEMENT; PRETREATMENT; PERFORMANCE; REACTOR; SYSTEM
Issue Date
201310
Publisher
TAYLOR & FRANCIS LTD
Citation
ENVIRONMENTAL TECHNOLOGY, v.34, no.13-14, pp.2163 - 2170
Abstract
The palm oil mill industry generates palm oil mill effluent (POME) and empty fruit bunches (EFB) as by-products. This study reports the mesophilic co-digestion of POME with EFB. The biochemical methane potential (BMP) of POME and EFB was 0.397 L CH4/g volatile solids (VS) and 0.264 L CH4/g VS, respectively. In a series of batch tests at various EFB to POME ratios, the maximum methane production rate was achieved at an EFB:POME ratio of 0.25-0.31:1. Performance data from lab-scale digesters confirmed the positive synergism by the addition of EFB to POME, which was attributed to the balanced chemical composition, for example the chemical oxygen demand (COD) to total Kjeldahl nitrogen (TKN) ratio. The EFB addition enhanced the acceptable organic loading rate, methane production, COD removal, and microbial activity. The mesophilic co-digestion of POME and EFB promises to be a viable recycling method to alleviate pollution problems and recover renewable energy in the palm oil mill industry.
URI
http://hdl.handle.net/YU.REPOSITORY/28776http://dx.doi.org/10.1080/09593330.2013.826253
ISSN
0959-3330
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공과대학 > 환경공학과 > Articles
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